Root Length and Vapour Pressure Deficit: Effect on Relative Water Content in Zea Mays L.
نویسندگان
چکیده
منابع مشابه
Reduced crown root number improves water acquisition under water deficit stress in maize (Zea mays L.)
In this study we test the hypothesis that maize genotypes with reduced crown root number (CN) will have greater root depth and improved water acquisition from drying soil. Maize recombinant inbred lines with contrasting CN were evaluated under water stress in greenhouse mesocosms and field rainout shelters. CN varied from 25 to 62 among genotypes. Under water stress in the mesocosms, genotypes ...
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Desiccation of 8- to 13-day-old seedlings, achieved by withholding nutrient solution from the vermiculite root medium, caused a reduction in nitrate reductase activity of the leaf tissue. Activity declined when leaf water potentials decreased below -2 bars and was 25% of the control at a leaf water potential of -13 bars. Experiments were conducted to determine whether the decrease in nitrate re...
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ژورنال
عنوان ژورنال: Australian Journal of Biological Sciences
سال: 1971
ISSN: 0004-9417
DOI: 10.1071/bi9710811